Half to j



(No Model.)

0. M. GBARING.

PROCESS OF MANUFACTURING ILLUMINATING GAS.

No. 323,660. Patented Aug. 4, 1885.

17 5 T: T 3: & mm .2 E w :1 if i. V

WITNESSES 2NVEWTOR .Attomey I N P ens. Wlshingtnn. us. I

UNITED STATES PATENT FFlCEO CHARLES M. GEARING, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONF- HALF TO J. R. MOKEE, OF SAME PLACE.

PROCESS OF MANUFACTURING lLLUMlNATlNG-GAS.

BPEGIFICATION forming part of Letters Patent No. 323,660, dated August 4, 1885.

Application filed April 8, 1885. (No model.)

To ctZZ whom it may concern:

Be itknown that 1, CHARLES M. GEARING, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in the Process of iilannfacturing IlluminatingGas, of which the following is a specification, reference be ing had therein to the accompanying draw- :0 ings.

This invention relates to certain improvements in the manufacture of illuminating-gas; and it has for its objects to utilize the unconsumed products of combustion of burning oil or other fuel, which consists, mainly, of carbonic oxide-gas, by combining the same with a richer gas generated from petroleum, in the manner more fully hereinafter specitied. These objects I attain by the means illust "ated in the accompanying drawings, in

' which- Figure 1 represents a transverse vertical sectional view of the apparatus which I employ to carry my invention into effect, and

Fig. 2 a longitudinal vertical sectional view of said apparatus.

In the drawings, the letter A indicates a furnace, built of masonry or any. other suitable material, and having an arched partition,

B, near the top on the inside. The said partition is perforated at intervals, as indicated by the letter O, and between the said partition and the top of the furnace is left a space or combustion-chamber, D, into which the hot and partiallydecomposed products of combustion pass from the furnace proper below. In the said space or combustion-chamber are located a series of retorts, E, three being shown in the present instance, and these 0 retort-s are connected at their front and rear by means of the pipes F. Into one of the reiorts extends a pipe, Gr, which connects with a pipe, H, extending from the top of the comlmstiouchamber before mentioned, and into the outer end of said pipe G extends a steaminjector, I, by means of which a combined current of steam and air may be forced into the retorts in connection with the unconsnmed products of combustion passing from the furnace.

The letter K indicates a pi pe passing from a suitable tank and leading into the pipe G, so as to supply the same with the oil 11eccssary to be carried into the retorts to be converted into a fixed gas, which will combine with the carbonic oxide carried in from the furnace and impart to the same the proper quantity of carbon to enrich it and convert it into an illuminating-gas.

The liquid fuel maybe fed or introduced into the furnace in any approved way-for instance, a perforated pipe, L, may be located under the grate and supply the requisite liquid fuel from some reservoir. Around the sides of the furnace may be located a perforated pipe, M, through which may be forced air, or air and steam combined, to properly support the combustion of the fuel.

The operation of my invention will be readily understood in connection with the above description, and is as follows: The unconsumed gases passing out of the upper or combustion-chamber of the furnace are carried into the retort-s, together with a current of air and petroleum, by the injected jet of steam, and in said retorts the gases are finally decomposed and fixed into an illuminatinggas, which is conveyed off by suitable pipes for use.

The novelty of this invention consists in injecting the products of the combustion of oil or liquid fuel, simultaneously with a current of steam, air, and a hydrocarbon, into a highly-heated retort or retorts, whereby the same, in a thoroughly-diffused condition, are instantaneously and mutually decomposed, forming a fixed gas.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent, 1s-

lhe process herein described of manufacturing illuminatinggas, the same consisting in injecting the products of combustion of burning liquid fuel, along with a current of steam and air and a hydrocarbon, siinultane- 95 ously into a highly-heated retort or retorts, whereby the same, in a thoronghlydiifused condition, are instantaneously and mutually decomposed, forming a fixed gas, substantially as specified. It

In testimony whereof I a'fiix my signature in presence of two witnesses.

CHARLES M. GEARING.

Vitncsses:

Jnnns Monnow, J. LILOND LYTLE. 

